EP2383842B1 - Dispositif électronique doté d'une liaison de passage de presse - Google Patents

Dispositif électronique doté d'une liaison de passage de presse Download PDF

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Publication number
EP2383842B1
EP2383842B1 EP11163843.3A EP11163843A EP2383842B1 EP 2383842 B1 EP2383842 B1 EP 2383842B1 EP 11163843 A EP11163843 A EP 11163843A EP 2383842 B1 EP2383842 B1 EP 2383842B1
Authority
EP
European Patent Office
Prior art keywords
component
plug
solid body
shunt
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11163843.3A
Other languages
German (de)
English (en)
Other versions
EP2383842A2 (fr
EP2383842A3 (fr
Inventor
Gerhard Grauf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2383842A2 publication Critical patent/EP2383842A2/fr
Publication of EP2383842A3 publication Critical patent/EP2383842A3/fr
Application granted granted Critical
Publication of EP2383842B1 publication Critical patent/EP2383842B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/364—Battery terminal connectors with integrated measuring arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/1059—Connections made by press-fit insertion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/306—Lead-in-hole components, e.g. affixing or retention before soldering, spacing means

Definitions

  • the invention relates to an electronic device with press-fit connection, a battery sensor and a method for producing such an electronic device.
  • the US 5941735 describes an insulation body with two contacts and an opening into which a fuse is introduced, the contact ends between springs of the contacts, which are fixed in the insulating body, are clamped.
  • Battery sensors determine the remaining charge of batteries. They are for example in DE 10 2006 019 895 A1 described. Thereafter, the electric current flowing out of the battery is measured via a low-resistance electrical resistance, also known as a shunt resistor or shunt, from which the remaining charge of the battery is then determined by calculation. The calculation takes place in a circuit on a printed circuit board, which is connected to the shunt via connecting elements. In this case, the connecting elements can be pressed into both holes in the circuit board and in holes of the shunt.
  • the inventive device replaces the solder joint of the prior art by an integrally formed with the shunt plug.
  • the advantage of the invention is that a blurring and thus a deplacement of the circuit board on the shunt are excluded by the soldering process. Any connection between PCB and shunt still requires only a single contact, which simultaneously ensures the mechanical and electrical connection between the PCB and shunt. Thus, not only the ohmic electrical contact resistance between the circuit board and shunt but also the number of necessary manufacturing steps in the production is reduced, since not only fewer steps for contacting itself but also less prefabricated components are necessary.
  • the device according to the invention comprises a component with an electrical circuit and a component opening and an electrically conductive solid body, which has an integrally formed with the solid body connector over which the solid body and the circuit are in electrical contact with each other.
  • the plug and the component are connected to each other via the component opening by means of a non-positive and / or positive connection.
  • the frictional connection may be a press fit in the component opening between the plug and the component. In this way, the connection is permanently resistant even to higher loads. Furthermore, a secure electrical contact is ensured at the same time.
  • the component opening may be formed continuously through the component, so that the press connection can not build up any stresses on the surface of the component on the opposite side of the component opening.
  • an end region of the plug can be arranged such that the end region touches a surface of the component for the positive connection. In this way, the electrical connection between the circuit board and shunt can be achieved simply by bending and contacting the end portion of the plug with the circuit.
  • the plug can have a recess on its end face.
  • the recess can preferably still be a caulking of the plug to the component opening. If the plug is to be contacted via an optional solder connection to a conductor track of the circuit, the recess offers an additional surface in order to make the contact between solder and plug mechanically more stable and of lower electrical resistance.
  • This depression can be in a development of the invention, a through hole through the solid body and thus contribute to the reduction of stresses in the solid body.
  • the recess is a blind hole.
  • the passage opening can in particular taper off from a side of the solid body opposite the plug. In this way, the through hole provides a good grip for the elastic casting compound.
  • the recess may be widened at the end face of the plug. This would provide an alternative or additional attachment of the component to the solid body via the plug.
  • the component could be so doubly secured, so that the component does not detach itself from the solid body even with a faulty manufactured press fit.
  • the solid body may have an electrical shunt resistor for the circuit and so not only serve as a holding element but also assume a function as an electrical component.
  • a surface of the solid body may be equal to or larger than a surface of the component.
  • the dimension of the solid body is so large enough to use it in series between a battery and a consumer as a current collector for measuring the output of the battery current so that a measurable voltage drops without producing noticeable large power losses.
  • the plug may have a triangular, square or round cross-section.
  • a plug with an angular cross-section secures the position of the solid body against the component against rotation of both elements to one another, while a plug with a round cross-section can be inserted well into the component openings by rotational movements.
  • an elastic casting compound can be poured into the depression and thus protect the joint between the solid body and the component from contamination.
  • the solid body with the plug and the electrical component may be at least partially or completely surrounded by the elastic casting compound. On these, the protection against contamination of important components can be extended down to the entire device.
  • the plug and / or the component opening may be provided with cutting edges. This improves the electrical contact with the component in the component opening.
  • the conductor track of the circuit to be contacted with the shunt may be inserted into the component opening.
  • the invention also provides an electronic battery sensor comprising a device according to the invention.
  • the solid body may have a shunt resistor, and the circuit may determine a charge level of a battery connected to the electronic battery sensor based on a detected electric current through the shunt resistor. Due to the robust mechanical and electrical connection between the solid body and the component, such a battery sensor is very fail-safe, even under extreme shocks. Therefore, the electronic battery sensor of the present invention is excellent for measuring the charge level of a vehicle battery even while driving.
  • the invention also provides a method for producing a device, which comprises an electrically conductive solid body and a component with an electrical circuit and a component opening.
  • a method for producing a device which comprises an electrically conductive solid body and a component with an electrical circuit and a component opening.
  • the component carrying the circuit is formed with the component opening and then the solid body with a plug integrally formed by the solid body.
  • the component is connected to the solid body via a frictional connection, in particular press connection and / or via a positive connection between the component and the plug via the component opening.
  • FIG. 1 is a first embodiment of an inventive device 2 shown in section. This representation is not to scale for clarity.
  • the device 2 comprises a component in the form of a printed circuit board 4 and a solid body in the form of a shunt 6.
  • the printed circuit board 4 has printed conductors 8, 10, which run along an upper side 12 of the printed circuit board 4 and open into a printed circuit board opening 14. There they extend along the wall of the guide plate opening 14 and exit from this at the bottom 16 of the circuit board 4 again, where they then continue.
  • the shunt 6 has an integrally formed with the shunt plug 18 which is inserted into the circuit board opening 14 and is connected thereto by means of a press fit.
  • the shapes of the plug 18 and corresponding to the circuit board opening 14 may be round or square in cross-section. In this way, an electrical contact between the conductor tracks 8, 10 and the shunt 6 and a mechanical contact between the circuit board 4 and the shunt 6 is made and maintained.
  • the plug 18 can be provided with cutting edges with which it can cut into the material of the printed conductors 8, 10.
  • the plug 18 is arranged completely sunk in the printed circuit board opening 14.
  • On the upper side of the plug 18, a recess 20 is formed in the shunt 6 inside.
  • a recess 22 is formed opposite the plug.
  • the electrical contacting can also take place with a solder, not shown, which closes the printed circuit board opening 14 and partially extends over the printed conductors 8, 10 on the surface 12 of the printed circuit board 4.
  • the recess 10 is particularly favorable because it provides a wide electrical and mechanical contact surface for the solder.
  • the printed conductors 8, 10 do not need to be inserted into the printed circuit board openings 14, since the solder ensures electrical contact with the shunt 6.
  • FIG. 2 a second embodiment of a device 24 according to the invention is shown in section. Identical or functionally identical parts are denoted by the same reference numerals as in the first embodiment. Again, this representation is not to scale for clarity.
  • the device 24 of the second exemplary embodiment comprises the printed circuit board 4 with printed conductors 8, 10 and a printed circuit board opening 14.
  • the circuit board 4 is placed on a shunt 26 and is supported by these.
  • the shunt 26 has a plug 28, which may have the shape of the plug 18 of the first embodiment, is guided through the circuit board opening 14 and forms a press fit with this.
  • the plug 28 has a through hole 30 through the plug 28 and through the shunt 26.
  • a recess 32 is present, which has a larger cross-section than the through hole 30.
  • the upper portion 34 of the plug 28 further protrudes beyond the circuit board 4.
  • the through-hole 30 can be widened, for example, with a mandrel in order to improve the hold of the printed circuit board 4 at the shunt 26. This widening can also produce the electrical and mechanical contact between shunt 26 and printed circuit board 4 as an alternative to the interference fit.
  • the devices 2, 24 of the first and second embodiments may be surrounded by a resilient molding compound 36 which protects the devices 2, 24, for example from contamination.
  • a resilient molding compound 36 which protects the devices 2, 24, for example from contamination.
  • the recess 20 and the recess 22 or correspondingly through the through hole 30 and the recess 32 the position of the molding compound 36 is fixed.
  • the recess 20 of the first embodiment may be designed for a better fixation of the molding compound 36 as a through hole.
  • FIG. 3 is a third embodiment of the device 24 from FIG. 2 shown in section. Identical or functionally identical parts are denoted by the same reference numerals as in the first and second embodiments and will not be described again. Again, this representation is not to scale for clarity.
  • the shunt 26 of the device 24 FIG. 2 a plug 29.
  • An end region 31 of the plug 29 is bent against the surface 33 of the printed circuit board 4 in such a way (arrow 35) that the end region 31 touches and contacts one of the conductor tracks 8, 10.
  • the circuit board 4 is clamped and held between the end portion 31 of the plug 29 and the shunt 26, so that a positive connection is made. Is at the point of contact of the end portion 31 of the connector 29, no trace 8, 10, so the end portion 31 of the connector 29, the surface 33 of the circuit board 4 also touch directly.
  • the end portion 31 of the plug 29 can be specially prepared for bending.
  • the end portion 31, for example, in the FIG. 3 not shown be protruding from the plug 29 nose.
  • the plug 29 of the third embodiment can be used to support the plug 28 FIG. 2 be provided.
  • the plug 29 may also electrically contact the printed conductors 8, 10 with the shunt 26 and the printed circuit board 4 with the shunt 26 mechanically. It is also possible that one of the two plugs 28, 29 takes over the electrical contact and the other plug 28, 29 takes over the mechanical contacting.
  • the use of the plug 29 from FIG. 3 was related to FIG. 2 described. However, this is not limiting. In the same way, the plug 29 can be made FIG. 3 also together with the plug 18 off FIG. 1 be used to support the electrical and / or mechanical contacting described above.
  • the end portion 31 may have one or more protruding lugs or be provided as a circumferential collar.
  • FIG. 4 an embodiment of a battery sensor 38 according to the invention is shown in plan view.
  • the battery sensor 38 has one of the previously described devices 2, 24.
  • the circuit board 4 is shown only in its outlines with five printed circuit board openings 14, through which the plug 18, 28, 29 of the shunt 6 are guided.
  • One of the printed circuit board openings 14 is arranged on the edge of the printed circuit board 4 and has a semi-cylindrical shape.
  • the plugs 18, 28, 29, the circuit, not shown, of the printed circuit board 4 is electrically connected to the shunt 6 and can thus measure a voltage drop at the shunt 6.
  • the volume of the shunt 6 is dimensioned such that the voltage drop is measurably large, but not so large that it leads to an undesirably high loss resistance.
  • the current through the shunt 6 and the charge of a battery not shown connected to the shunt 6 can be determined and output, for example, via terminals 40 to a further process unit.
  • the area of the shunt 6 is larger in plan view than an area of the circuit board 4.
  • the shunt 6 on one side of the circuit has a through hole 42 into which the connector of the battery is inserted.
  • the connection can be made with clamps or screw clamps. Alternatively, a further through-hole may also be provided.
  • FIG. 5 is a diagram of an embodiment of a method according to the invention 46 for producing the device 2, 24 according to the invention shown.
  • step 48 the printed circuit board 4 is manufactured with the printed circuit board opening 14.
  • step 50 the shunt 6, 26 is manufactured with the plug 18, 28.
  • step 52 for connecting the shunt 6, 26 to the printed circuit board 4 the plug 18, 28 is inserted into the printed circuit board opening 14, fixed by a frictional connection and made an electrical contact. This completes the process (step 54).
  • an integrally formed with the solid body connector is thus provided on an electrically conductive solid body and inserted into a component opening of a component with an electrical circuit.
  • the plug for electrical and simultaneous mechanical contacting of the solid body to the component and the circuit can be used.
  • the plug and the component can be connected via the component opening positively and / or non-positively, for example by means of a press fit.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (19)

  1. Ensemble comprenant :
    un composant (4), en particulier une carte de circuit, qui présente un circuit électrique (8, 10) et une ouverture (14) dans le composant et
    un corps massif (6, 26) électriquement conducteur, en particulier un shunt, qui présente une fiche (18, 28, 29) par laquelle le corps massif (6, 26) et le circuit (8, 10) sont mis en contact électrique mutuel,
    la fiche (18, 28, 29) et le composant (4) étant reliés par l'intermédiaire de l'ouverture (14) du composant au moyen d'une liaison en correspondance mécanique et/ou en correspondance géométrique, caractérisé en ce que
    la fiche est formée d'un seul tenant avec le corps massif et
    en ce que le composant (4) est placé sur le corps massif (6, 26) et est porté par ce dernier.
  2. Ensemble selon la revendication 1, dans lequel la liaison en correspondance mécanique est un ajustement comprimé entre la fiche (18, 28, 29) et le composant (4) dans l'ouverture (14) du composant.
  3. Ensemble selon l'une des revendications précédentes, dans lequel l'ouverture (14) du composant traverse le composant (4).
  4. Ensemble selon la revendication 3, dans lequel la fiche (18, 28, 29) est passée à travers l'ouverture (14) du composant.
  5. Ensemble selon la revendication 4, dans lequel une partie d'extrémité (31) de la fiche (16, 28, 29) déborde au-delà du composant (4).
  6. Ensemble selon la revendication 5, dans lequel pour la liaison en correspondance géométrique, une partie d'extrémité (31) de la fiche (29) est disposée de telle sorte que la partie d'extrémité soit en contact avec le côté supérieur du composant (4) ou avec un circuit (8, 10) disposé sur ce côté supérieur (33).
  7. Ensemble selon la revendication 6, dans lequel le composant (4) est serré entre la partie d'extrémité (31) de la fiche (29) et le corps massif (26).
  8. Ensemble selon l'une des revendications 5 à 7, dans lequel la partie d'extrémité (31) présente un bec qui déborde de la fiche (29) ou un collet qui déborde de la fiche.
  9. Ensemble selon l'une des revendications précédentes, dans lequel la fiche (18, 28, 29) présente un creux (20, 30) sur son côté frontal.
  10. Ensemble selon la revendication 9, dans lequel le creux (20, 30) est une ouverture (30) traversant le corps massif (6, 26).
  11. Ensemble selon la revendication 10, dans lequel l'ouverture de passage (30) se rétrécit, en particulier depuis le côté du corps massif (6, 26) opposé à la fiche (18, 28).
  12. Ensemble selon l'une des revendications 9 à 11, dans lequel le creux (20, 30) est évasé sur le côté frontal de la fiche.
  13. Ensemble selon l'une des revendications 9 à 12, comprenant une pâte élastique (36) coulée dans le creux (20, 30).
  14. Ensemble selon la revendication 13, dans lequel le corps massif (6, 26), la fiche (18, 28) et le composant électrique (4) sont entourés au moins en partie par la pâte élastique (36).
  15. Ensemble selon l'une des revendications précédentes, dans lequel le corps massif (6, 26) est une résistance électrique de dérivation du circuit.
  16. Ensemble selon l'une des revendications précédentes, dans lequel, dans une vue en plan sur l'ensemble (2, 24), une surface du corps massif (6, 26) a la même taille ou une taille plus grande qu'une surface du composant (4).
  17. Ensemble selon l'une des revendications précédentes, dans lequel la fiche (18, 28) présente un volume dont la forme a un caractère coupant.
  18. Capteur électronique de batterie comprenant
    un ensemble (2, 24) selon l'une des revendications précédentes,
    le corps massif (6, 26) présentant une résistance de dérivation et
    le circuit (8, 10) étant prévu pour déterminer l'état de charge d'une batterie raccordée au capteur électronique (38) de batterie sur la base d'un courant électrique saisi aux bornes de la résistance de dérivation.
  19. Procédé de fabrication d'un ensemble (2, 24) selon la revendication 1, comprenant un corps massif (6, 26) électriquement conducteur et un composant (4) doté d'un circuit électrique (8, 10) et d'une ouverture (14) dans le composant, le procédé comportant les étapes qui consistent à :
    former (48) le composant (4) qui porte le circuit (8, 10) et doté de l'ouverture (14),
    former (50) le corps massif (6, 26) avec une fiche (18, 28, 29) qui est formée d'un seul tenant avec le corps massif (6, 26) et qui en déborde et
    relier (52) le composant (4) au corps massif (6, 26) par une liaison en correspondance mécanique, en particulier une liaison comprimée, et/ou par une liaison en correspondance géométrique entre le composant (4) et la fiche (18, 28, 29) par l'intermédiaire de l'ouverture (14) du composant.
EP11163843.3A 2010-04-29 2011-04-27 Dispositif électronique doté d'une liaison de passage de presse Not-in-force EP2383842B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010028381A DE102010028381A1 (de) 2010-04-29 2010-04-29 Elektronische Vorrichtung mit Presspassverbindung

Publications (3)

Publication Number Publication Date
EP2383842A2 EP2383842A2 (fr) 2011-11-02
EP2383842A3 EP2383842A3 (fr) 2011-11-09
EP2383842B1 true EP2383842B1 (fr) 2014-12-31

Family

ID=44263063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11163843.3A Not-in-force EP2383842B1 (fr) 2010-04-29 2011-04-27 Dispositif électronique doté d'une liaison de passage de presse

Country Status (2)

Country Link
EP (1) EP2383842B1 (fr)
DE (1) DE102010028381A1 (fr)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776153A (en) * 1953-11-23 1957-06-05 Enfield Cables Ltd Improvements in electrical connecting plugs
US4275374A (en) * 1979-08-20 1981-06-23 Daniel Chaucer Fuse-plug adapter for electrical cord
DE9311221U1 (de) * 1993-07-27 1993-11-18 Siemens Ag Verbindung eines Antennendrahtes mit einer Leiterplatte eines Mobilteils von einem schnurlosen Telefon
JP2901900B2 (ja) * 1995-08-04 1999-06-07 エス・オー・シー株式会社 コード付き電源プラグ
US5941735A (en) * 1996-06-12 1999-08-24 Litton Systems, Inc. Press-fit fuse or component holder
JPH1083753A (ja) * 1996-09-05 1998-03-31 Yazaki Corp サービスプラグ
DE102004007851B4 (de) * 2004-02-17 2006-03-16 Kromberg & Schubert Gmbh & Co. Kg Anschlussvorrichtung für eine Batterie
DE102004053648A1 (de) * 2004-11-03 2006-05-04 Leopold Kostal Gmbh & Co. Kg Batteriestromsensor für ein Kraftfahrzeug
DE102004055849A1 (de) * 2004-11-19 2006-06-01 Bayerische Motoren Werke Ag Batteriesensorvorrichtung
FR2879751B1 (fr) * 2004-12-20 2007-02-23 Johnson Controls Tech Co Dispositif de mesure d'un courant circulant dans un cable
DE202005013220U1 (de) * 2005-08-19 2005-12-22 Wagon Automotive Gmbh Blechformteil mit Durchsetzfügeverbindungen
DE102005057117A1 (de) * 2005-11-30 2007-06-14 Siemens Ag Vorrichtung zum Erfassen einer elektrischen Größe eines Akkumulators und Verfahren zur Herstellung derselbigen
DE102006019895A1 (de) 2006-04-28 2007-11-15 Siemens Ag Strommessvorrichtung mit speziell kontaktierter Leiterplatte und entsprechendes Herstellungsverfahren
US7381101B2 (en) * 2006-08-25 2008-06-03 Lear Corporation Battery post connector
DE102008041539A1 (de) * 2008-08-26 2010-03-04 Robert Bosch Gmbh Shuntwiderstand mit Auswerteschaltung
DE102009000827A1 (de) * 2009-02-13 2010-08-19 Robert Bosch Gmbh Vorrichtung und Verfahren zum Verbinden zumindest zwei elektrischer Anschlüsse

Also Published As

Publication number Publication date
EP2383842A2 (fr) 2011-11-02
DE102010028381A1 (de) 2011-11-03
EP2383842A3 (fr) 2011-11-09

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